METHOD AND APPARATUS FOR TRANSFER MOLDING GLASS LENSES

摘要

A method and apparatus for molding of glass into finished optical elements wherein optical glass is placed in a transfer chamber formed of a glasslike carbon material and is subjected to heat and pressure. The softened glass is transferred through a sprue into a mold cavity formed of the same glasslike carbon material. The walls defining the mold cavity and the transfer chamber have high surface quality and high surface accuracy, and the mold cavity is configured to produce optical elements of predetermined shapes.